Home / 12,115,844.70-18,183,681.45-12,021,366.30

Finding the Fourth Proportional to 12,115,844.70, 18,183,681.45 and 12,021,366.30

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Solution

The fourth proportional to 12,115,844.70, 18,183,681.45 and 12,021,366.30 is: 18,041,886.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,844.70 : 18,183,681.45 = 12,021,366.30 : x
  2. Step 2: Convert to fraction form
    12,115,844.70/18,183,681.45 = 12,021,366.30/x
  3. Step 3: Cross multiply
    12,115,844.70x = 18,183,681.45 × 12,021,366.30
  4. Step 4: Simplify right side
    12,115,844.70x = 218,592,695,392,965.12
  5. Step 5: Solve for x
    x = 218,592,695,392,965.12/12,115,844.70
  6. Step 6: Final answer
    x = 18,041,886.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.